Class 12 Physics
CBSE and UP Board
Electromagnetic Waves
Chapter-8 Exercise 8.3
NCERT Solutions for Class 12 Physics Chapter 8 Question 3
What physical quantity is the same for X-rays of wavelength 10⁻¹⁰ m, red light of wavelength 6800 A and radio waves of wavelength 500 m?
Share
The speed of light (3 x 108 m/s) in a vacuum is the same for all wavelengths. It is independent of the wavelength in the vacuum.